Oil filter



June 23, 1942. H A, BEVER 2,287,670

OIL FILTER Filed March 18, 1941 w P/f Patented June 2:3, 1942 biet mit,aevoc'lg eri di all baume. iglb'lswliwr finiamo ne enticed lic f mulimmm-.ima mi a gated aromi-e bise STATI-z s mii-ENT OFFICEentopfplanaiiewfl simsala aiiffliagnxrtary sectional view of the id line2-2 of Fig. l and h' by-pass uptake and the li: im altirtitillsctionalview showing all nog y falesie time parte assemblea.

mtlfglsfilltihil'siitable top extension and means for securing th-platein the top.

'I'h oughout thevdescription and drawing the nibef'nii'iiployed to referto the same part.

Considering the drawing, a cupped top body portion I has on one side twoprojecting pierced ears 2 and 3 by means of which the .whole may beattached to a suitable support.

As best shownA in Fig. 3, the top I has an extended open portion 4provided with a seat for a plate, and by means of a ring nut 5 acircular glass plate 6 is held in the seat and permits the inspection ofVthe interior of the top from out' side." The form of the open-extension of the .top and the glass plate and its holding elements maybe varied within the scope of this application. A y

In Fig. 3 will benoted an outlet 'I for oil pmsing out of the top I byway of the outlet tube 8 shown in Fig. 4. 1f desired the outlet 9 may beclosed by the screwfplug I0. Outlet 9 has -the p same opening into thetop as is provided for the fellow outletv 8.

, What istermed for-the purposes of this ex- `planationv a bowl II islocated below the top I,

and in connection therewith as illustrated. The top and bowl are securedin contact by means of a cap nut 4I2 on the threaded end of an axialbolt rod I3. Therod has a lower end head I4 shouldered to meet a sleeveenlargement I5 at the bottom of thej'bowl. It will be noted that theupper edge `I6 of the bowl is made somewhat Application vMarch 18, 1941,Serial No. 384,013

' 3 claims. (o1. 21o-165') ,ncidlhisiinlventiomrelates to oil filtersvof the charthicker to contact with the top, and vthis contact maybechanged into a different formation. I As shown in Fig. 3 the boltrod hasa shoulder 'I der in Fig. 3 is the central sleeve portion I8 of an innerportion termed for this explanation a core. The sleeve ts the bolt rodlengthwise. The top of the core I9 is in the` form of a circular disk,the upper surface of the disk being provided with concentric grooves 20,the bottom of each groove having a perforation 2| as shown in Fig. 2. InFig. 3 will also be noted the passage or chamber 22 in the top of thecore. This passage is formed in a downwardly extending circumferentialedge portion of the core marked 23. The upper part of the core ts intothe top I as shown and the downwardly extended part 23 has an encirclinggroove 24 constructed with a passage 25 leading into ethe bowl I I. Thepassage 24 is arranged in communication with the oil inlets 26 and 21shown in Fig. 4, either of which may be used as desired, the other beingclosed.

As best shown in Fig. 3, the core sleeve I8 is surrounded by aAcylindrical which has a closed bottom 29 attached by means of the ringnut 30 to the lower end of the core sleeve. e

In Figs. 2 and 3 will b'e noted the upper disk 3| provided with spacedperforations 32 and made of any chosen material. Top disk 3| iscentrally pressed down by the thumb nut 33 on the threaded end of thebolt rod I3 and the pressure exerted on thedisk top 20 of the coreas-illustrated. 'Ihe top I and the core are thus clamped together.

Considering Fig. 2 there will be noted an upy take passage 34 leading toa vertical bore 35 normally closed by the ball valve 36 controlled bycoil spring 3'I which is kept by means of nut 38 in the vertical cavity39 above the valve.

In the operation of this invention, the bowl may be drained by removingscrew plug 40 in the bottom of the b owl. It will be particularlyobserved that by removing thebolt rod all the parts of this lter may bedetached one from another and each given a thorough cleaning whennecessary. The oil enters the bowl by way of the encircling outsidegroove in the core and passes into the filtering member. Through theopen upper end of the member oil enters the side passage in the top ofthe core continuing through the perforations of the disk of the core andthe cover disk thereon into the top of the body top and out through oneof the oil outlets. If the at its upper portion a'nd engaging thisshoulfiltering member 28 filtering member clogs for any reason, the oilpressure in the valved uptake lifts and the oil is discharged into thebody top thus relieving any over pressure.

Having described my invention. I claim:

1. An oil filter comprising a top portion provided withdevices forengaging a support, a bowl portion arranged below the top, an axial boltrod extending through the said top and bowl and having a threaded upperend, a cap nut engaging the threads of the rod above the top and adaptedto secure the top and bowl together in detachable relation, a coreportion having a central sleeve body constructed to t on said bolt rodlengthwise, devices constructed to secure the core on the rod, said corehaving an annular disk upper portion, said disk having grooves in itsupper surface and perforations in the grooves, the said disk beingextended downwardly around its edge and said downward portion having anoutside encircling groove, oil inlets in communication with the saidoutside groove, said groove being constructed with openings whereby oilenters the bowl, a cylindrical lter carried by the said core sleeve andengaging the said downwardly extended edge portion of the disk, saiddisk having an oil cavity arranged to receive oil from within the lterand whereby filtered oil may pass through the disk perforations into thedisk grooves, and said top being constructed with oil outlets.

2. In an oil filter, a top portion provided with devices for engaging asupport, a bowl portion arranged below the top, an axial bolt rodextending through the said top and bowl and having a threaded upper end,a cap nut engaging the threads of the rod above the top and adapted tosecure the top and bowl together in detachable relation, a core portionhaving a central sleeve body constructed to t on said bolt rodlengthwise, devices constructed to secure the core on the rod, said corehaving an annular disk upper portion, said disk having grooves in itsupper surface and perforations in the grooves, the said disk beingextended downwardly around its edge and said downward portion having anoutside encircling groove, oil inlets in communication with the saidoutside groove, said groove being constructed with openings wherebyoilienters the bowl, a cylindrical filter carried by said core sleeveand engaging the said downwardly extended edge portion of the disk, saiddisk having an oil cavity arranged to receive oil from within the filterand whereby filtered oil may pass through the disk perforations into thedisk grooves, said top being constructed with oil outlets, and said tophaving a by-pass extending from the said outside encircling disk grooveinto said top and having a pressure operated spring governed valvearranged to open and close the by-pass.

3. An oil filter, comprising a top body portion, a bowl portion, meansfor securing the top portion and the bowl portion together in detachablerelation comprising an axial bolt rod, a core poi-tion carried by therod and having an upper perforated disk portion located in the top, afiltering member having a closed bottom attached to said core, theltering member being open at the upper end, the said core having anannular downwardly extending portion at the edge thereof constructed tofit closely around the open end of the ltering member, said top bodyportion and said downwardly extending portion of the core havingcommunicating passages whereby oil from the exterior may 'flow into thebowl and into the filtering member, the said top body" portion havingoil inlet connections and oil outlet connections constructed andarranged to be coupled to oil tubes, andthe said body portion v havingan extended open portion, a glass plate arrangedv in the said openextension of the top and m'eans for securing the plate removably i thesaid open extension.

HARRY A. BEVER.

